package com.example.baiduai.ai.utils;

import com.alibaba.fastjson.JSONObject;
import com.example.baiduai.exception.PlatformException;
import com.example.baiduai.utils.HttpUtils;
import com.example.baiduai.utils.ObjectUtils;
import com.google.common.collect.Maps;

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

public class AiUtils {


    /**
     * 获取权限token
     * @return 返回示例：
     * {
     * "access_token": "24.460da4889caad24cccdb1fea17221975.2592000.1491995545.282335-1234567",
     * "expires_in": 2592000
     * }
     */
    public static String getAuth() {
        // 官网获取的 API Key 更新为你注册的
        String clientId = "CpcjYqWyo5BnYUCP9NkWyxWM";
        // 官网获取的 Secret Key 更新为你注册的
        String clientSecret = "wejqOzwQ6aG4EaIubHp8rT1iGfcSs2Ti";
        return getAiToken();
    }










    /**
     * 获取API访问token
     * 该token有一定的有效期，需要自行管理，当失效时需重新获取.
     * @return assess_token 示例：
     * "24.460da4889caad24cccdb1fea17221975.2592000.1491995545.282335-1234567"
     */
    public static String getAiToken(){
        HashMap<String, String> tokenMap = Maps.newHashMap();
        tokenMap.put("grant_type","client_credentials");
        tokenMap.put("client_id","CpcjYqWyo5BnYUCP9NkWyxWM");
        tokenMap.put("client_secret","wejqOzwQ6aG4EaIubHp8rT1iGfcSs2Ti");
        String s = HttpUtils.doGet("https://aip.baidubce.com/oauth/2.0/token", tokenMap);
        String accessToken = JSONObject.parseObject(s).getString("access_token");
        if(ObjectUtils.isEmpty(accessToken)) throw new PlatformException("获取token  失败");
        return  accessToken;
    }


    /**
     * 拼接token 参数
     * @return
     */
    public static  Map tokenParmsMap(){
        String aiToken = getAiToken();
        HashMap<String, String> map = Maps.newHashMap();
        map.put("access_token",aiToken);
        return map;
    }






    public static String getCreateDataSet(){
        String aiToken = getAiToken();
        System.out.println("aiToken = " + aiToken);
        HashMap<String, String> badyDataMap = Maps.newHashMap();
        badyDataMap.put("type","IMAGE_CLASSIFICATION");
        badyDataMap.put("dataset_name","图片分类猫狗v1v1");
        HashMap<String, String> pramsMap = Maps.newHashMap();
        pramsMap.put("access_token",aiToken);
       String s = HttpUtils.doPostJson("https://aip.baidubce.com/rpc/2.0/easydl/dataset/create", badyDataMap,pramsMap);
        return  s;
    }


















    /**
     *  baidua 获取token
     * @param ak
     * @param sk
     * @return
     */
    public static String getAuth(String ak, String sk) {
        // 获取token地址
        String authHost = "https://aip.baidubce.com/oauth/2.0/token?";
        String getAccessTokenUrl = authHost
                // 1. grant_type为固定参数
                + "grant_type=client_credentials"
                // 2. 官网获取的 API Key
                + "&client_id=" + ak
                // 3. 官网获取的 Secret Key
                + "&client_secret=" + sk;
        try {
            URL realUrl = new URL(getAccessTokenUrl);
            // 打开和URL之间的连接
            HttpURLConnection connection = (HttpURLConnection) realUrl.openConnection();
            connection.setRequestMethod("GET");
            connection.connect();
            // 获取所有响应头字段
            Map<String, List<String>> map = connection.getHeaderFields();
            // 遍历所有的响应头字段
            for (String key : map.keySet()) {
                System.err.println(key + "--->" + map.get(key));
            }
            // 定义 BufferedReader输入流来读取URL的响应
            BufferedReader in = new BufferedReader(new InputStreamReader(connection.getInputStream()));
            String result = "";
            String line;
            while ((line = in.readLine()) != null) {
                result += line;
            }
            /**
             * 返回结果示例
             */
            System.err.println("result:" + result);

            JSONObject jsonObject =   JSONObject.parseObject(result);
            String access_token = jsonObject.getString("access_token");
            return access_token;
        } catch (Exception e) {
            System.err.printf("获取token失败！");
            e.printStackTrace(System.err);
        }
        return null;
    }


    public static void main(String[] args) {
        String auth = getCreateDataSet();
        System.out.println(auth);
    }
}
